This chapter assumes that you already have the WordPress software installed and running correctly on your Web server, and that your Web server meets the minimum requirements to run WordPress.
Before you enable the WordPress multisite feature, you need to determine how you are going to use the feature. You have a couple of options:
If you are planning to run just a few of your own sites with the WordPress multisite feature, then your current hosting situation is probably well suited. However, if your plans are to host a large network with hundreds of blogs and multiple users, you should consider contacting your host and increasing your bandwidth, as well as the disk space limitations on your account.
The best example of a large blog network with hundreds of blogs and users (actually, more like millions) is the hosted service at WordPress.com (http://wordpress.com). At WordPress.com, people are invited to sign up for an account and start a blog using the network feature within the WordPress platform on the WordPress server. When you enable this feature on your own domain and enable the user registration feature, you are inviting users to